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Phys.org / More colorful songbirds face higher extinction risk
In the humid jungle of Vietnam, Natalia Ocampo-Peñuela and Monte Neate-Clegg spent hours patiently waiting to spot the rare "Halloween bird." Officially known as the collared laughingthrush, this songbird has striking orange, ...
Phys.org / Ancient gum disease may have helped reshape jaws before human brains expanded
Human evolution is generally explained through changes in brain size, locomotion or tool use, but new research from Wits University suggests that gum disease and changes in facial structure may have been important factors ...
Phys.org / Harsh UVB bursts leave tadpoles with more DNA damage than longer exposure
Sunburn is a serious problem in the Southern Hemisphere, where depleted ozone provides less protection from UVB. Tadpoles are at particular risk because they are growing rapidly, making them vulnerable to UVB DNA damage. ...
Phys.org / Cosmic dust could play key role in cracking long-standing mystery of solar corona heating
A researcher at The University of Alabama in Huntsville (UAH), a part of The University of Alabama System, has published a new study in The Astrophysical Journal suggesting that tiny charged dust grains near the sun may significantly ...
Phys.org / Were Clovis foragers in Late Pleistocene North America big-game hunters, or just big-game scavengers?
There are currently 15 well-documented Late Pleistocene localities in North America in which Clovis points are found associated with proboscidean remains (of mammoth, mastodon and gomphothere). Archaeologists routinely assume ...
Phys.org / 'Super typhoon' Bavi heads for US Pacific islands
People in Guam and the Northern Marianas hunkered down on Saturday as the second "super typhoon" to hit the U.S. Pacific territories since April approached with the equivalent of Category 5 hurricane winds.
Phys.org / Narrow time windows shaped passage for salmon, trout and lamprey at Haringvliet sluices, 18-year analysis shows
A new study published in Movement Ecology describes how migratory fish passed through the Haringvliet Sluices before the introduction of Kierbeheer (the partial opening of the Haringvliet Sluices to allow limited saltwater ...
Phys.org / Study reveals systemic barriers slowing down circular plastics transition
A new study from the University of Eastern Finland shows that the transition toward a circular plastics economy is hindered by systemic interdependencies and internal contradictions within ecosystems.
Phys.org / Mummified dogs reveal Tiwanaku people buried companions beside homes long before they became status symbols
In the arid landscapes of southern Peru, around 1,100 years ago, someone carefully dug a small pit, laid down a woven mat and placed a young dog within as if sleeping, possibly wrapped in twine. Centuries later, the mummified ...
Phys.org / Tax-avoiding firms more likely to greenwash, analysis of 391 ASX companies suggests
Businesses today face growing dual pressures to deliver strong financial performance while also demonstrating environmental and social responsibility. New research from Murdoch University published in Business Strategy & ...
Medical Xpress / Early dog exposure may protect babies from infections through home microbes
Children who have been in contact with dogs in early childhood are, on average, healthier and require fewer courses of antibiotics than children without such contact. The protective association is explained, at least in part, ...
Phys.org / Primate brains might have evolved to 'catch up' with larger bodies, but then kept growing
A new analysis supports the previously overlooked "brain lag" hypothesis—the idea that, in some primate lineages, the evolution of larger body size preceded the evolution of larger brain size—while also building on that hypothesis ...